Improvement in regulators for gas and other fluids



J. E. LEWIS. Regulators for Gas and other Fluids.

No. 196,301. Patented Oct. 23, 1877.

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J. EDVIN LEWIS, 'OFWORCESTER, MASSACHUSETTS.

Specification forming part of Letters Patent No. 196,301, dated October 23,1877; application filed July 7, 1877.

- To all whom it may concern:

burner having my improved pressure-regula- Fig. 2 is a central vertical sectlon of the same enlarged, showing a;

tor applied thereto.

double arrangement of the regulator or check devices. Fig. 3 is a horizontal section of the same at position X X. Figs. 4, 5, and 6 are vertical sectional views, showing modifications in the construction and arrangement of the regulator.

The nature of my invention consists in an automatic check device, constructed and operating, substantially as hereinafter described, for regulating the flow of gases or fluids through tubes or pipes to give a uniform discharge imder varying pressure or head; also,

in a gas-burner constructed with an automatic regulator or check device, such as described, and in the combination with the burner-tip of a dependent tube and check, as hereinafter explained, the subject-matter claimed being hereinafter definitely. specified.

The accompanying drawings illustrate my invention as it may be employed in the construction of gas-burners, several modifications being shown, in all of which, however, the check or regulator valve operates in similar manner.

The gas passes through the apparatus in an upward direction, or from the inlet a to the outlet 1).

In Figs. 1, 2, 3 is shown an apparatus with two checks or regulators adjusted to act at different degrees of pressin'e.

A indicates the outer casing or main body, which may be of any suitable material and of any suitable size and form. 0 indicates a thimble or ferrule, supported in the upper end of the casing A for embracing or holding the burner-tip B or discharge-nozzle. D denotes the throat-tube, dependent from the tip or its thimble O, and forming the only passage through which the gas passes to the outlet 1).

Tube D may be adjustably secured to the tip or thimble, so that its position can be varied up or down.

E indicates the check or valve, made in the form of a cylindrical cup, and arranged on the end of the dependent tube D. The inner diameter of the cup E is slightly greater than the outer diameter of the tube D, thus leaving a small annular passage, d, between the parts. The check-cup E is free to rise and fall on the throat-tube D, but is retained from dropping entirely below the end of said tube, while small grooves or projections are provided on the end of the tube, which prevent the check or valve from entirely closing the passage when pressed up against the end of the tube.

F indicates a tubular shell or casing open at its lower end, and dependent from the thimble 0, to which it is attached. Said casing F surrounds and forms a chamber, 6, for the valve E, while at the same time it serves as a tube for the second check or valve, G, which is arranged upon its lower end in a manner similar to the valve E and tube D, an annular passage, f, being left between the parts F and G for the passage of the gas from the chamber h to the opening of the tubular casin g F.

H indicates a tube secured in and projecting upward from the base or shank A in the lower end of the casing A, and through which the gas enters the chamber h.

K is an adjustable head screwed onto the tube H for supporting the check or valve G at the proper position, and preventing it from dropping below the end of tube F. By raising or lowering the head Kthe valve or check "Gr is adjusted to act with a greater or less variation of pressure.

By screwing in or out the tube D to change the length of its projection below the tip or thimble, the valve or check E may be adjusted to act at any desired degree of pressure.

The degree of pressure required for operating the checks or valves depends "somewhat on their length or the distance to which the cup-cylinder extends over the end of its tube, and also on the relative size of the annular passage 62 or f in relation to the size of the j cup or check audits tube, a small passage requiring less pressure to. raise the cup; 7 r

The shank A! is screw-threaded for attach- .menttothe supplypipe (notshown herein) in the ordinary manner.

V The gas, entering under pressure at capasses 7 through tube H and fills the chamber h. It

7 then flows do'wn'theipassage: f, between the 7 cup G and shell F, andup. into the; chamber 7 e, thence downward through passage d and up 7 i through the throat-tube D to theburner-tip B V V or exit 7).

The pressure iwitl lin the chamber it being j first, and servin the first. l. Any number of checks or'valves; may thus be arranged inse1ies,:forming an apparatus capable of regulating the fiow under any yariations ofpressure or head r r The. check-cup, buoyed up byithe excess of i .p re' r m b ow, l nces ata position which gives the properopening or flow of gas,

normal, the valves or checks E G remain quiet attheir lowest position, permitting the gas to an increase of pressure, thecheck; or valve is tip is notmaterially changedby the variation of pressure in the supply-pipe.

V Thechecks E and Gare; adjusted to act with i I ditlerentdegreesof pressurc the second check acting at a pressure beyond the: limit of the. g. to reduce the pressure on and there remains, as it were, floating in its space, rising with any increase of pressure, and descending as the pressure diminishes, thus proportioning the area of passage to the pressure of gas, and keeping the rate of discharge uniform.

The regulator, when used for an ordinary gas-biuner, where the variation of pressure is slight, may be made with a single check-valve, E, and the casing A made to suit the requirements of the particular use or situation, as in Figs. 4, 5, and 6.

Fig. 4 shows a modified form of burner, with tip B, thimble (3, tube D, check E, and easing A arranged for insertion in the end of a pipe or tube or similarsituation.

Fig. 5 shows a modified form, with single check E, and having an inverted cap, L, placed over the end of tube H for deflecting and de livering the gas at the bottom of the chamber 71. If desired, this cap L and the valve E may be made in a single piece, as shown at L.

Fig. 6 shows a modification wherein the tube D is fitted directly to the interior of the burnertip'B,whichlatterisifitted intothetopfend of I the inclosing casingA, and thecasing' offset or reduced, tbrmingia shouldenwhich serves r to support the check-valve Ewheu notbuoyed up by the pressure of gas. 7

.. The regulator devices,constructed substan :tially as described, can be employed 'for, regu latlng the pressure or flow of water, or other llquids, if'desirechby connecting a discharge pipe or nozzle inplace of the burner-tip B. V

7 It willbe understood that the effect and op eration of the devices would be the same by a reduction of the pressure, or exhaustion above the check E, ash; is with an'increaseof press ure below.

' 'Havingdescribedmy improved pressure-' regulator ibr gas or'fluids, what I claim thiere in as new an'djof my invention,and desire to i r secure by Letters Patent, is- .1. The cup E, loosely arranged on the end sf the dependent tube D, with annular space" (I forregulatingthe flow of gas or liquid through V i I before set forth.

'2. In combination with the discharge-tip or :e xitor ifice, a dependent tube, open LiJflbS ends, 7 throughjwhich the gas or fluid passes to said i orifice, and a. loose check cup or valve arranged: over the end of said tube, withanarrow annui lar space between the parts for the new of :or fluid to; the entrance of the tube, whereby said valve is balanced, to be automaticall I said tube, substantially in the manner: herein actuated by excess or variation-of pressure in i i the lower: surroundingspace or: chamber, for g V reducing unchanging the area of passage into said tube,and thereby regulating the flow of Q gas or fluid so as to give a uniform rate of discharge under varying head or pressure, substantially as hereinbefore set forth.

3. In combination, the loose cup E, dependent tube D, and shell or casing A, substantially as and for the purposes set forth.

4:. The combination, with the tip or nozzle B or its thimble G, loose cup or check valve E, and its surrounding case, of the longitudinally-adjustable tube D, substantially as and for the purpose stated.

5. The combination, with the inlet-tube H, throattube D, and inclosing-case A, of two or more check-valves, E G, and intermediate tubular casings F, substantially as and for the purpose set forth.

6. In combination with check'- cup G and screw-threaded tube H, the screw cap or head K, as and for the purposes described.

Worcester, Massachusetts, July 3, 1877.

J. EDWIN LEWIS.

Witnesses Guns. I-I. BURLEIGH, J. E. BARTON. 

